Changed tabs to spaces in **/*.lisp, more-conditions.asd

* **/*.lisp: changed tabs to spaces
* more-conditions.asd: likewise
Use (lambda ...) instead of #'(lambda ...) in src/macros.lisp

* src/macros.lisp (with-condition-translation): use (lambda ...)
  instead of #'(lambda ...)
Reformatted format strings in src/conditions.lisp

* src/conditions.lisp (missing-required-argument): reformatted format
  string in condition report
  (incompatible-arguments): likewise
  (initarg-error): likewise
  (missing-required-initarg): likewise
  (incompatible-initargs): likewise